Razor



P. COOK RAZOR Aug. 21, 1928. 1,681,396

Filed Sept. 10, 1924 INVENTOR PHUL 00K ill Patented Aug. 21, 1928.

i Q til PAUL COOK, OF LINDEN, MARYLAND.

1 i K nazon.

Application filed September 10, 1924-. Serial No. 736,866.

This invention relates to razors, and more particularly to improvements in devices of that class known as safety razors; it being the principal object of the invention to provide a safety razor of simple and novel construction embodying therein as an integral part a stropping and honing roller by means of which the blade is sharpened by drawing the roller back and forth over a surface such as the hand or table top.

Another object of the invention is to provide means for automatically reversing the position of the blade with each reverse movement of the roller back and forth across the rolling surface. so as to sharpen the cutting edge of the blade from both sides under pres sure regulated by the strength applied.

A further object of the invention is to provide a razor embodying a sharpening roller for the purpose above stated and which further serves, during. shaving, as a guard to prevent cutting the face and as a means for removing refuse lather.

A still further object resides in the provision of a locking shaft, operable by means of a knob or nut at one end, for clamping; the blade at different positions of adjustment for shaving and which may be loosened so as to release the blade'for sharpening.

Other objects of the invention reside in the various details of construction and combination of parts which provide for an easy application or removal of the blade and which makes possible the cleaning of the parts without their being disassembled and adapts the device for sharpening other types of blades.

In accomplishing these and other objects of the invention, I have provided the improved details of construction. the preferred forms of which are illustrated in the accompanying drawings, wherein- Figure 1 is a perspective view of a selfsharpening safety razor embodied by the present invention, showing the parts set in sh aving position.

Figure 2 is a sectional view of the razor, taken in a planeparallel with the plane of the handle.

Figure 3 is a sectional view in the longitudinal direction of the stroppinp; roller taken substantially on the line 3-3 in Figure 2.

Figure 4 is a perspective view showing the stropping roller shaft with one section of the roller thereon.

Figure 5 is aplan view of one of the abrasive cover pieces of the stropping roller.

l igure is a perspective View of the various parts or the razor in disassembled relation.

Figures 7 and 8 are side views of the razor, illustrating the blade sharpening operation and showing, he reverse positions of the blade with respect to the stropping roller during different directions movement of the latter across the rolling surface.

Referring more in detail to the several views of the drawings 1 designates the handle of the device which, preferably, would be made from a single piece of sheet metal bent longitudinally upon itself with arms 2 and 8 extending laterally in opposits direction from its inner end with their end portions turned forwardly in parallel, spaced apart relation forming the legs l and 5 of the handle between which the blade, the stroppinp; roller and supporting parts, presently described, are mounted.

Located between the legs 4%. and 5 is a frame structure, comprising; opposite end plates 6 and disposed in parallel planes and in close rel to said less. These are joined by an inte ral connectin bar 8 which as presently described serves a scrap "to remove refuse lather from the guard and stroppino' roller. The frame is supported by means of a locl.- shaft that is extended, as shown best in ,5 8, through the legs f and 5 and through holes l and i1 the end plates 6 and i" of the frame. One end of the shaft is threaded, as shown at 152, for application to a threaded hole 13 in the leog 4t and at its other end has a lrnob or nut 14 hearing against the other face of lee; whereby, upon tightening the shaft, the legs will be clamped tightly against the end plates of the frame and the latter will in this way be locked at an adjusted position. 'When the shaft is loosened, the lens are loosened from clamped relation is inst the frame end plates and the latter are free for pivotal movement about the shaft 9.

ltotatably mounted between the plates 6 and 'l'. which I will term their lower ends, is a stroppinp; roller 15. This is mounted on a shaft 16 having! its ends trunnioned in openings l? and 18 in said plates. Preferably. the stropping roller would consist of a plurality of tubular sections 19, as shown in Figure 3, that are slidably mounted on the shaft and about which covering strips 20 of leather or other suitable abrasive material is secure However, the roller could be of a Mounted between the upper end portions of the frame plates 6 and 7 on a cross shaft 24 having its ends rotatable in holes 25 and 26 in said plates, is a blade mounting frame comprising a flat plate 28 with one edge curled about and fastened to the shaft 24, as inclicated at 30 in Figure 2, and having laterally turned end pieces 31 and 32 disposed respectively just within the end plates 6 and 7 of the supporting frame. The razor blade 33 is disposed flatly against the inner face of the plate 28 with its cutting edge 34 extended beyond the swinging edge of the latter so that when the parts are adjusted to shaving position, the edge will be closely adjacent to the surface of the roller 15, as shown in Figure 2. The blade is held functionally in posit-ion within its mounting frame by means of a clamping plate 35 that is pivotally mounted on a pin 36 extended between the end pieces 31 and 32and which has an inturned, yieldable edge portion 37 adapted, by pressing the opposite edge of the clamping plate toward the shaft 24, to be pressed tightly against the inner face of the blade to clamp it against the plate 28 so as to hold it securely in position. The blade mounting frame, when adjusted to shaving position, is held within its carrying frame by means of end plates 6 and 7 of the latter, being clamped against the end pieces '31 and 32 by the ti hteiiing of the shaft 9.

On one end of the shaft 24, l have fixed a small gear wheel 38 that operates, as presently described, to reverse the position of the blade for sharpening andwhich is adapted to move in mesh with a gear toothed surface 39 formed on one edge surface of the leg 5 about the shaft 9 as a center. Movement of the gear 38 along the gear surface 39 effects rotative movement of shaft 24 and this bodily rotates the blade mounting frame to effect the engagement of opposite edges of the blade with the sharpening roller.

The cl ampingplate 35 is limited in its movement in clamping direction by contact with the curled portion 30 of the plate 28 and at this end has an extension or clip 42 by means of which it may be moved to release the blade when it is desired to adjust or replace it.

When it is desired to sharpen the blade the shaft 9 is first loosened by turning nut 14 so that the inner frames may be free to rotate about their supporting shafts 9 and 24. The roller 15 is then placed in contact, as shown in Figure 7, with a rolling surface 45, which may be the top of a table, or palm of the hand, then by drawing the razor in the direc tion of the arrow A, the roller 15 will be caused to roll in the direction of the arrow thereon, while gear 38 will be advanced along the gear sector 39 toward the handle thus rotating the shaft 24 and the blade frame to such position that the edge of the blade will be engaged with the inner edge of the roller. Then by reversing the direction of movement of the razor to that indicated by the arrow ll in Figure 8, the gear 38 will ad ance towi'ird the outer end of the gear segment 39, rotating shaft 24 to reverse the blade so that its other face will be brought against the roller. Thus by a back and forth rolling movcnicnt of the razor, the blade is swung over and back so that each side of its edge is sharpened alike.

The blade may also be pressed directly against the roller by holding the razor between the fingers pressed upon the bar 8 and back of the blade clan'iping plate. The best results, however, are ob "aincd by pressing the thumb against the top of the blade lock plate and rolling the razor several times in one di rection. An equal number of strokes should then be taken in the opposite direction with the blade reversed.

When the razor is to be used for shav ng, the blade 33 is first properly adjusted in its frame and clamped at such adjustment by the plate 35. This frame is then positioned so that the cutting edge of the blade is disp sed approxin'iately one-sixtccnth of an inch from the surface of the roller. The roller mounting frame is then adjusted to approximately a right angle with respect to the handle and both frames are then locked at this adjustment by tightening the shaft 9.

When shaving with the razor, the roller 15 moves in rollingcontact with the face just in advance of the blade and serves as a guide for the blade and as a guard which prevents cutting the face. It also serves, by virtue of its rolling contact immediately above the blade, as a means of depositing refuse lather on the cross bar 8 from which it can readily be removed.

While I have shown the preferred forms of construction, it is evident that these forms may be varied without departing from the principles upon which the device is con structed and I claim the right to vary within such limitations.

Having thus described my invention, what I claim is new therein and desire to secure by Letters-Patent, is:

1. In a razor of the character described in combination, an abrasive roller, :1 .lltlvilllly mounted blade and means operable by advancing the roller in opposite directions in rolling contact with a superficiary for actuating the blade to engage opposite sides of the cutting edge with the roller for sharpening, and means for holding the blade against movement for shaving.

2. In a razor of the character described in combination, an abrasive roller, a movably supported blade, releasable means for holdin the blade in adjustedrelation to the roller for shaving and means operable by advancing the roller in opposite directions in rolling contact with any superficiary for actuating the blade to engage opposite sides of its edge with the abrasive roller for sharpening.

3. In a razor of the class described, in combination, an abrasive guard roller, and a shaving blade having its cutting edge adj ustable to spaced relation with the roller for shaving and adapted to be moved into contact therewith for sharpening, by bringing said roller into frictional contact with any object independently of the razor.

4. In a razor of the class described, in combination, an abrasive guard roller, a shaving blade having its cutting edge adjustable to spaced relation with the roller for shaving and a locking means for retaining it at such adjustment and which is releasable to permit the blade edge to be moved into contact with the roller for sharpening, when said roller is brought into frictional contact with any object independently of the razor.

5. In a razor of the class described, in combination, an abrasive guard roller, a pivot-ally movable frame, a shaving blade carried by said frame, means for adj ustably holding the frame and blade in adjusted relation from the roller for shaving and which is releasable to permit the frame to be moved pivotally to engage opposite sides of the blade edge with the roller for sharpenin 6. In a razor of the class described, a handle member, a frame pivotally mounted in said handle member, an abrasive guard roller mounted in said frame in position for rolling contact with a rolling surface, a blade mounting pivotally fixed in said frame, a blade carried by said mounting, means operable by pivotal movements of the frame in opposite directions with respect to the handle member for rotating the blade mounting in opposite directions to cause opposite sides of the blade edge to be moved into contact with the roller for sharpening and means for locking the blade mounting and frame against movement.

7. A razor of the class described, comprising a handle member, a frame pivotally movable in said handle member, an abrasive guard roller mounted in said frame in position for rolling contact with a rolling surface for sharpening and for rolling contact with the face for shaving, a second frame pivotally movable in the first named frame, a blade carried by the second frame and adjustable to bring its edge into spaced relation to the said roller for shaving, means for locking the frames at adjustable positions relative to each other and to the handle and releasable to permit their pivotal movement therein and means operable by reverse pivotal movements of the first named frame within the handle member for effecting rotative movement of the second frame whereby opposite sides of the blade edge will be brought into contact with the said roller for sharpenin 8. A razor of the class described comprising a handle terminating in spaced apart legs; one of said legs being provided with a gear toothed segment, a shaft extended between said legs, a frame pivotally mounted on said shaft, an abrasive guard roller mounted in said frame, a shaft rotatably carried by said frame, a gear on said shaft operable in mesh with said gear toothed segment, a second frame fixed to the latter shaft, a blade mounted in the said latter frame with its edge adjustable into spaced relation to said roller for shaving, means for locking the frames relative to each other and to the handle and releasable to permit free pivotal movements of the frames, and a rolling movement of said gear on said segment whereby reverse pivotal movements of the first frame with respect to the handle members, effects opposite rotative movements of the blade mounting frame whereby opposite sides of the blade edge will be brought into contact with the roller for sharpening.

9. A razor of the class described comprising a handle provided with parallel, spaced apart legs; one of said legs having a gear toothed segment, a shaft extended between said legs having a nut at one end bearing against one leg and a threaded end connected with the other leg, a frame pivotally mounted on said shaft between said legs comprising opposite end plates and a transverse connecting bar, an abrasive guard roller mounted in said frame between said plates and in parallel relation close to the said bar, a shaft rotatably carried by said frame, a blade mounting frame fixed on said latter shaft to be moved rotatably thereby, a blade in said frame, a clamping plate fixed to the frame for adjustably holding the blade, and a gear fixed on said latter shaft in rolling mesh with the gear segment whereby the blade carrying frame may be moved rotatably to contact opposite sides of its edge with the abrasive roller for sharpenin Signed at Everett, Snohomish County, Washington, this 22d day of August, 1924.

PAUL COOK. 

